Spraying device.



PATENTBD DEC. 5, 1905.

w. s. BUCKLIN. SPRAYING DEVICE.

APPLICATION FILED SEPT.19,1904.

"UNITE sraras PATENT OF FTOE. I

\VTLLIAM S. BUCKLIN, OF PHALANX, NEW JERSEY, ASSIGNOR TO THE NATIONALOANNING & MANUFACTURING COMPANY, A CORPORATION OF NEWV J ERSEY.

SPRAYING DEVICE.

Specification of Letters Patent.

Patented Dec. 5, 1905.

Application filed September 19, 1904.- Serial No. 224.935.

1'0 (z l/ [(1/1 0/11. it 11mg 1 0111007711.

Be it known that I, WILLIAM S. BUCKLIN,

,a citizen of the United States, residing at Phalanx, Monmouth county,State of New Jersey, have invented certain new and useful Improvementsin Spraying .Devices, of which the following is a full and truespecification.

This invention relates to spraying devices, and more particularly tospecial constructions of the same adapted for use in applying linings tothe interior of metal'food-cans, although the said improvements arecapable of application to other uses with equal facility and advantage.

The invention also involves numerous and various features of importancein construction and mode of operation, as will presently appear and bemore particularly pointed out in the appended claims.

Referring to the accompanying one sheet of drawings, forming a parthereof, Figure 1 represents in vertical longitudinal section, partly inelevation, a spraying device constructed in accordance with thisinvention; and Fig. 2, a transverse section on line 2 2 of Fig. 1,showing also adjoining and connected parts. Fig. 3 is an enlarged detailplan view of the spray-head pro or, and Fig. 4 a crosssection of thesame in inc 4 4.

The apparatus comprises a spray-head (re presented generallybynumeral 1) receiving air and the liquid to he s irayed thereby,respectively, from the supp y conduits or pipes 2 and 3. The liquid-pipe3 is horizontally disposed and is in free communication with theliquid-reservoir 4, being secured thereto by means of the threadedengagement shown and the jam-nuts 3. The air-pipe 2 is disposed parallelto and above pipe 23, passing into the interior of the reservoir andfrom thence out to a connection with a hose or pipe 5, in turn connectedwith a suitable source of compressed air. (Not shown.) Theliquid-reservoir may be of any convenient shape and size and, as shownin the drawings, consists of a cylindrical body portion having a flatend wall 4, pipes 2 and 3, and a removable cap 6, opposite said wall,whereby the interior may be readily exposed for inspection or cleansing.The horizontal liquidpipe 3 and the air-pipe 2 are preferably located atabout the center of the side wall.

and an adjustable overflow-conduit 7 leads out of the said reservoirfrom a point a little below the level of the top of the ll( uid-pipe orat such height as will prevent the liquid therein rising hi herthau theopenings of the spray-head nozz es, presently to be described. The saidoverflow-conduit may assume various forms, but is shown simply as a tubethreaded into a tapped opening in the bottom of the reservoir, beingrendered adiluste able in this manner. The pipe 8 leads rom the overflowto a pump S), by means of which excess of liquid is pumped back into therelatively higher tank 10, from wlumce its return by hydrostaticpressure to the reservoir 4 is by way of the control-cock 1] and thepipe 12, debouching into said reservoir, as shown in Fig. 2. In thismanner the liquid in the reservoir which supplies the spray-head ispreserved at a constant level, which level, moreover, is predeterminedand is slightly below the points from which the liquid issues from thespray-head.

The receptacle or foodcan to be sprayed With the liquid of the reservoiris intended to be pushed over the spray-head 1. and rotated one or-mororevolutions, as may be desired,.

to receive a complete interior coating. The apparatus by means of whichthis operation is automatically performed forms no part of the presentinvention and is therefore not illustrated or described, it beingunderstood that the said operation may also be done by hand, if sodesired. To the end of providing suitable and adequate support for thehead of the can when so placed an annular boss 13 is formed on thereservoir 4, surrounding the supply-pipes 2 and 3, and .a rotatablesleeve or collar 14 is journaled in this boss, formin an abutment whichis engaged by the heat or open end of the receptacle when the latter ispushed against it by the rotating pusher 15. The collar 14 is flanged atits free end and its front surface is faced with rubber or otheryielding material to afford a full bearing for said can-head. Duringthis operation the spray-head is brou fn. into action and the spraydisplacement within the receptacle is given vent through a series ofapertures 16, provided for that purpose in the collar 14.

The spray-head proper comprises a liquidchamber 18 and an air-chamber I7 in connection, respectively, with the pipes 3 and 2, the saidair-chamber being vertically superposed upon the other and both havingtheir corners rounded ofi so as to offer the least obstruction to thepassage over it of the can-head. The fronts of the chambers arepreferably, though not necessarily, curved and air-blast orifices in theshape of fine tubes 19 are formed in the front of the air-chamber,discharging in diverging directions throughout a total angle of aboutonehundred and eighty degrees, or so that the receptacle will be sprayedfrom top to bottom. Adjacent each air-blast orihas and in atomizingrelation thereto is a liquidnozzle'20, which nozzles are strai htnipplesscrewed into the top wall of the c amber 18, with their lowerextremities extending below the level of the Li uid, which isdetermined, as above describ ed, by the adjustment of theoverflow-conduit. The liquidnozz'les are preferably arranged in a curveconforming to the angles of dischar e of the air-orifices, and boththetubes 19 o the airorifices and also the liquid-nozzles 20 aredisposed within the angle or corner formed between the top of chamber 18and the front of chamber 17, so that these comparatively delicate partsare rotected from accidental contact and possib l as the latter ispushed into position over them. In vertical direction the parts are soadjusted and proportioned that the edge of the opening in the can willpass equidistantly over the head, and'in horizontal direction the sameresult is produced by forming a jog or bend in the pipes 2 and 3, asshown in Fig.

3, whereby the general axis of the pi es substantially coincides withthe genera axis of the two chambers or head, thereby bringing the entirebody of the spray-head compactly into the center of the can orreceptacle.

1. A spray-head comprising a chamber for compressed air, having a curvedfront, a plurality of divergent air ,blast orifices in said front, incombination with a liquid chamber adjacent said chamber for compressedair having also a curved front and a plurality of communicatingliquid-nozzles in. atomizing relation to said orifices.

2. A spray-head comprising adjacent air and liquid chambers, formingbetween them an angle or corner, a plurality of liquid-nozzlescommunicating with said liquid-chamber and disposed within theprotection afforded by said angle, and air -blast orifices in e injuryby the can-head .two subscribing said air-chamber in atomizing relationto said nozzles. I"

3. A spray-head comprising liquid and air chambers with liquid-nozzlesand air-blast orifices provided respectively therein in mutual atomizingrelation, said orifices and nozzles being disposed to spray throu hout atotal angle of substantially one hun red and eighty degrees, liquid andair supply conduits respectively for said bhambers and a jog or bend insaid conduits bringing the general axis of the same into substantialalinement with the general axis of said liquid and air chambers.

4. In a receptacle spraying device, a li uid-reservoir and aspray-headsupplied wit liquid therefrom, in combination with a rotaryreceptacle-abutment journaled on said.

reservoir.

5. In a receptacle spraying device, a liquid reservoir and av spray headsupplied thereby with liquid, in combination with an annular boss onsaidreservoir and a rotary collar journaled thereonacting as an abut:ment for the head of the receptacle.

6. Ina receptacle spraying device, a liq uid-reservoir and a spray-headsu ported thereby, an abutment for thehead o the receptacle on saidreservoir surrounding the support for said spray-head and an aperture insaid abutment acting as a vent for the spray displacement.

7. In a receptacle spraying uid-reservoir and a spray-head connectedtherewith, an overflow-conduit in saidresendevice, a liqvoir, a tank ata higher level than the level of said reservoir in .combination with apump forcing said overflow into the tank-,"and a valve-controlledfeed-pipe from said tank to the reservoir.

8. In a receptaclev spraying device, a liquid-reservoir, a spray-head, aliquid-pipe ri idly secured to said reservoir, an air-pipe a' jacentsaid liquid-pipe and parallel thereto, both of said pipes sup lying saidsprayhead, in combination Willi an annular boss surrounding said pipesand a rotary abutment for the head of th receptacle journaled on saidboss;

In testimony whereof I have signed my name to the specification'inthepresence of witnesses. WILLIAM S BUCKLT Witnesses:

. PnnoY O. DAVIS,

B. O. APPLEGATE.

